Finally got the time to dig in to the oscilloscope an retired electrical engineer donated to me, "you may have fun trying to get it to work".
My god...it's full of valves...
This so pretty.
At an estimate, there's maybe a total of 500 components, compare that with anything modern, which is in the millions of components when you consider valve=transistor, and chips.
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Oscilloscopes from the 80s, even DSOs, are in at most tens of thousands of components range (most of it in SRAM). Mine, apart from discrete components, has 74-series TTL logic chips, some opamp-like ICs, and 8kB (or 16?) of SRAM.
@robryk Five. Hundred. Tops. 😎 😂
And it's a kit build - my neighbour's dad bought it as a hobby thing in the 60s, every component needed to be soldered on. He gave up on it, and my neighbour finished it off as a teenager. He went on to be an electrical engineer working in steel foundries and the like, mega-amp stuff.